After water is pumped from a river or lake to a water treatment plant, the first step of treatment is _____
a. aeration
b. clarification
c. coagulation
d. filtration
a
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Which of the following letters in Figure 1 shows a dimension of 1'-6"?
a. A
b. B
c. C
d. D
The worker using the platform controls on an aerial lift is designated as the _____.
a. controller b. operator c. driver d. conductor
Static pressure readings are taken on a duct system by
A) Pointing the pressure sensing tube into the airstream B) Subtracting the total pressure from the velocity pressure C) Subtracting the velocity pressure from the total pressure D) Pointing the pressure sensing tube perpendicular to the air stream
What does the instruction RRC A do?
A) It rotates the 9 bits of the accumulator including carry one position to the right. B) It rotates the 9 bits of the accumulator including carry one position to the left. C) It rotates the 8 bits of the accumulator including carry one position to the right. D) It rotates the 8 bits of the accumulator including carry one position to the left.